Image forming apparatus and control method for excellent usability for users using print data

Abstract

An image forming apparatus using an image forming unit configured to form an image on a sheet and a display unit configured to display information includes at least one controller, the at least one controller configured to function as a management unit configured to manage print data in association with user information, the management unit configured to discriminably manage information about previously-printed print data and information about unprinted print data, and a unit configured to display on the display unit a user selection screen on which a plurality of selection objects corresponding to the user information is arrangeable and on which the selection object corresponding to the user information associated with the unprinted print data is arranged while no selection object corresponding to the user information associated with the previously-printed print data but not associated with the unprinted print data is arranged.

What is claimed is: 
     
       1. An image forming apparatus comprising:
 a printer configured to print an image on a printing medium by a print job being executed, 
 a display configured to display a plurality of objects each corresponding to a different one of users and based on each of which the image forming apparatus performs user authentication for the corresponding user, and 
 a controller configured to execute a print job corresponding to an authenticated user, 
 wherein the controller is further configured to cause the display to switchably display a first screen or a second screen, the first screen being for displaying the plurality of objects in a selectable manner regardless of whether each of the plurality of the objects is an object based on which the image forming apparatus performs the user authentication for a user corresponding to a print job held in the image forming apparatus or not, and the second screen being for displaying, among the plurality of objects, an object based on which the image forming apparatus performs the user authentication for only a user corresponding to a print job which is held in the image forming apparatus and which has not yet been subject to execution of printing by the printer. 
 
     
     
       2. The image forming apparatus according to  claim 1 , wherein the second screen does not display an object based on which the image forming apparatus performs the user authentication for a user corresponding to a print job which is held in the image forming apparatus and which has been subject to execution of printing by the printer and not corresponding to a print job which is held in the image forming apparatus and which has not yet been subject to execution of printing by the printer. 
     
     
       3. The image forming apparatus according to  claim 1 , wherein the second screen displays an object based on which the image forming apparatus performs the user authentication for a user corresponding to a print job which is held in the image forming apparatus and which has been subject to execution of printing by the printer and corresponding to a print job which is held in the image forming apparatus and which has not yet been subject to execution of printing by the printer. 
     
     
       4. The image forming apparatus according to  claim 1 , wherein the second screen displays an object based on which the image forming apparatus performs the user authentication for a user corresponding to a print job which is held in the image forming apparatus and which has not yet been subject to execution of printing by the printer and not corresponding to a print job which is held in the image forming apparatus and which has been subject to execution of printing by the printer. 
     
     
       5. The image forming apparatus according to  claim 1 , wherein the first screen displays all the plurality of objects in a selectable manner. 
     
     
       6. The image forming apparatus according to  claim 1 , wherein the controller is further configured to cause the display to display either the first screen or the second screen in accordance with a display target selected on the display. 
     
     
       7. The image forming apparatus according to  claim 1 , wherein the controller is further configured to cause the display to display the second screen in a case where a filter for sorting a user corresponding to a print job which has not yet been subject to execution of printing by the printer is selected. 
     
     
       8. The image forming apparatus according to  claim 1 , wherein the controller is further configured to cause the display to further switchably display a third screen for only displaying an object based on which the image forming apparatus performs the user authentication for a user corresponding to a print job which is held in the image forming apparatus and which has been subject to execution of printing by the printer and not corresponding to a print job which has not yet been subject to execution of printing by the printer. 
     
     
       9. The image forming apparatus according to  claim 8 , wherein the controller is further configured to cause the display to display the third screen in a case where a filter for sorting a user corresponding to a print job which has been subject to execution of printing by the printer is selected. 
     
     
       10. The image forming apparatus according to  claim 1 , wherein the controller is further configured to perform user authentication for a user corresponding to an object selected from among the plurality of objects and, in a case where the user authentication succeeds, allow the corresponding user to log in to the image forming apparatus. 
     
     
       11. The image forming apparatus according to  claim 1 , wherein the controller is further configured to, in a case where the user authentication for the user corresponding to the print job which is held in the image forming apparatus and which has not yet been subject to execution of printing by the printer succeeds, display the print job corresponding to the authenticated user in a selectable manner.